Valley Hall effect caused by the phonon and photon drag
arXiv:2004.05091 · doi:10.1103/PhysRevB.102.155302
Abstract
Valley Hall effect is an appearance of the valley current in the direction transverse to the electric current. We develop the microscopic theory of the valley Hall effect in two-dimensional semiconductors where the electrons are dragged by the phonons or photons. We derive and analyze all relevant contributions to the valley current including the skew-scattering effects together with the anomalous contributions caused by the side-jumps and the anomalous velocity. The partial compensation of the anomalous contributions is studied in detail. The role of two-phonon and two-impurity scattering processes is analyzed. We also compare the valley Hall effect under the drag conditions and the valley Hall effect caused by the external static electric field.
18 pages, 7 figures, 1 table
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Cited by in corpus (16)
- Nonlinear Valley Hall Effect
- Orbital Hall physics in two-dimensional Dirac materials
- Skew Scattering and Side Jump Drive Exciton Valley Hall Effect in Two-Dimensional Crystals
- Acoustoelectric effect in two-dimensional Dirac materials exposed to Rayleigh surface acoustic waves
- Nonlinear circular valley photogalvanic effect
- Valley and spin accumulation in ballistic and hydrodynamic channels
- Nonequilibrium Theory of Photoinduced Valley Hall Effect
- Spin and Valley Hall effects induced by asymmetric interparticle scattering
- Terahertz spin ratchet effect in magnetic metamaterials
- Electron diffusion induced valley Hall effect and nonlinear galvanodiffusive transport in hexagonal 2D Dirac monolayer materials
- Electric field effect on electron gas spins in two-dimensional magnets with strong spin-orbit coupling
- Role of Coulomb interaction in the valley photogalvanic effect
- The drag of photons by electric current in quantum wells
- Renormalization of the valley Hall conductivity due to interparticle interaction
- Impurity-band optical transitions in two-dimensional Dirac materials under strain-induced synthetic magnetic field
- Electric and spin-valley currents induced by structured light in 2D Dirac materials